| 摘要 |
<p>A blind fastener (10) of the type having a fastener body (20), a threaded stem (24) and a sleeve (32) is provided with a drive nut (38) in abutting contact with the fastener body to provide mechanical engagement between the abutting surfaces of the two elements (12, 14). The underside of the drive nut includes locking elements to drivably engage the outer surface of the fastener body. The positive mechanical engagement between the two elements minimizes the build-up of tensile load applied to the stem during setting of the fastener.</p> |
